Release 3.5 Added support for CICS Transaction Server 3.1 for Z/OS.
  Most CICS programs now run RMODE(ANY),AMODE(31).
  No file changes are required to convert from prior releases.

Release 3.4 Added support for CICS Transaction Server 1.1 and 1.2 for OS/390.
  Added support for CICS Transaction Server 1.1 for VSE/ESA.
  No file changes are required to convert from prior releases.

Release 3.3 Year 2000 compatibility. Although screens, printed output, and card input positions are defined with 2-digit years, internal calculations involving dates now utilize 4-digit years. No file changes are required to convert from prior releases